JP4017596B2 - スイッチング増幅装置 - Google Patents

スイッチング増幅装置 Download PDF

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Publication number
JP4017596B2
JP4017596B2 JP2003525985A JP2003525985A JP4017596B2 JP 4017596 B2 JP4017596 B2 JP 4017596B2 JP 2003525985 A JP2003525985 A JP 2003525985A JP 2003525985 A JP2003525985 A JP 2003525985A JP 4017596 B2 JP4017596 B2 JP 4017596B2
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JP
Japan
Prior art keywords
power
switching
signal
power supply
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003525985A
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English (en)
Japanese (ja)
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JPWO2003021769A1 (ja
Inventor
篤 三田村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shindengen Electric Manufacturing Co Ltd
Original Assignee
Shindengen Electric Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shindengen Electric Manufacturing Co Ltd filed Critical Shindengen Electric Manufacturing Co Ltd
Publication of JPWO2003021769A1 publication Critical patent/JPWO2003021769A1/ja
Application granted granted Critical
Publication of JP4017596B2 publication Critical patent/JP4017596B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2003525985A 2001-09-04 2002-09-04 スイッチング増幅装置 Expired - Fee Related JP4017596B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001267305 2001-09-04
JP2001267305 2001-09-04
PCT/JP2002/008979 WO2003021769A1 (fr) 2001-09-04 2002-09-04 Appareil d'amplification de commutation

Publications (2)

Publication Number Publication Date
JPWO2003021769A1 JPWO2003021769A1 (ja) 2004-12-24
JP4017596B2 true JP4017596B2 (ja) 2007-12-05

Family

ID=19093449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003525985A Expired - Fee Related JP4017596B2 (ja) 2001-09-04 2002-09-04 スイッチング増幅装置

Country Status (6)

Country Link
US (1) US6831509B2 (fr)
EP (1) EP1427101A4 (fr)
JP (1) JP4017596B2 (fr)
KR (1) KR100494757B1 (fr)
CA (1) CA2431297C (fr)
WO (1) WO2003021769A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7795969B2 (en) * 2003-04-07 2010-09-14 Nxp B.V. Digital amplifier
US7126416B2 (en) * 2004-11-17 2006-10-24 Princeton Technology Corporation Pulse amplitude modulation (PAM) method and circuit for improving the performance of a D-class audio amplifier
JP2008047945A (ja) * 2005-03-28 2008-02-28 Nec Saitama Ltd アンプ装置
JP4574466B2 (ja) * 2005-06-29 2010-11-04 シャープ株式会社 音声再生装置
FR2890258B1 (fr) * 2005-08-30 2007-10-12 Thales Sa Dispositif et procede pour amplifier des signaux rf impulsionnels
US20090261902A1 (en) * 2008-04-17 2009-10-22 Freescale Semiconductor, Inc. Asynchronous Error Correction Circuit for Switching Amplifier
US8995691B2 (en) 2008-07-14 2015-03-31 Audera Acoustics Inc. Audio amplifier
JP5337120B2 (ja) * 2010-09-13 2013-11-06 パナソニック株式会社 Ｄ級増幅器及び無線通信装置
FR2966994B1 (fr) * 2010-11-02 2018-01-26 Cddic Amplificateur audio class-d pwm combine avec un elevateur de tension et avec controle de dissipation.
CN115421021B (zh) * 2022-08-17 2026-03-03 成都华微电子科技股份有限公司 集成电路和集成电路电源开关同步噪声测试方法
CN115567007B (zh) * 2022-12-05 2023-03-10 四川湖山电器股份有限公司 一种功率放大器直流工作点跟踪电路

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016501A (en) * 1975-12-29 1977-04-05 Motorola, Inc. Switching amplifier system
JPS55166314A (en) 1979-06-14 1980-12-25 Sony Corp Pulse duration modulating/amplifying circuit
US5075634A (en) * 1990-11-23 1991-12-24 Blade Technologies Inc. Composite bridge amplifier
JPH05219743A (ja) 1992-02-04 1993-08-27 Shindengen Electric Mfg Co Ltd 降圧チヨッパ回路の力率改善方法
WO1994011799A1 (fr) * 1992-11-10 1994-05-26 Motorola, Inc. Regulateur de commutation et systeme amplificateur
US6373335B1 (en) * 1997-09-18 2002-04-16 Robert W Carver Integrated audio amplifier
JP3348019B2 (ja) * 1998-07-06 2002-11-20 シャープ株式会社 パルス波増幅装置
JP3445179B2 (ja) 1998-12-28 2003-09-08 シャープ株式会社 Δς変調を用いるスイッチング増幅器
US6717392B2 (en) * 2000-05-30 2004-04-06 Rádiodetection Limited Signal generator
JP2002158549A (ja) * 2000-11-17 2002-05-31 Sony Corp デジタルパワーアンプ装置

Also Published As

Publication number Publication date
US20040124914A1 (en) 2004-07-01
KR20030063370A (ko) 2003-07-28
US6831509B2 (en) 2004-12-14
CA2431297C (fr) 2006-02-14
CA2431297A1 (fr) 2003-03-13
JPWO2003021769A1 (ja) 2004-12-24
WO2003021769A1 (fr) 2003-03-13
EP1427101A4 (fr) 2006-05-17
EP1427101A1 (fr) 2004-06-09
KR100494757B1 (ko) 2005-06-14

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